Bradford White designs, engineers & builds water heating, space heating, combination heating and storage solutions for residential, commercial, & industrial applications. FIND A PLUMBING PRO FOR THE PRO ® SITE

Beginning, June 12, 2017, EF ratings will be replaced with the new industry standard for measuring energy efficiency in water heaters called, Uniform Energy Factor (UEF). The new UEF rating method improves the industry’s ability to:

2024年4月29日 · Uniform Energy Factor, or UEF, is the U.S. Department of Energy’s (DOE) industry standard for measuring water heater efficiency. You may have heard buzz around heat pump water heaters and their record-breaking UEFs, but what does that mean?

Uniform Energy Factor or UEF is the standard measure of a water heater’s overall efficiency. Basically, the higher the UEF rating, the more efficient the water heater. (The former measurement EF is no longer used and cannot be directly compared to UEF.

A Bradford White ENERGY STAR ® certified water heater reduces the impact of water heating on the environment by saving energy and reducing Greenhouse gas emissions. Our high efficiency water heaters help customers lower their carbon footprint in a significant way.

Uniform Energy Factor (UEF): The newest measure of water heater overall efficiency. The higher the UEF value is, the more efficient the water heater. UEF is determined by the Department of Energy’s test method outlined in 10 CFR Part 430, Subpart B, Appendix E.

A water heater's energy efficiency is determined by the uniform energy factor (UEF), which is based on how much energy the water heater uses and how much energy is used to power the water heater itself. The higher the uniform energy factor, the more efficient the water heater.

The Uniform Energy Factor (UEF) is the DOE’s latest metric for communicating the energy efficiency of residential water heaters. Previously, you may have seen efficiency measured by Energy Factor (EF); however, in June 2017, the DOE changed the test procedures and metric used to communicate the energy efficiency of residential water heaters ...

2024年11月11日 · Uniform Energy Factor (UEF) is a measure of how efficiently a water heater converts energy into hot water over a simulated year of use. UEF ratings are used for tankless and hybrid water heaters and range from 0.5 to 1.0, …

2025年2月11日 · In 2017, the Department of Energy (DOE) introduced the Uniform Energy Factor (UEF) to provide a more accurate and comprehensive measure of water heater efficiency. The UEF takes into account more real-world conditions and different usage patterns.